This industry comprises establishments primarily engaged in the merchant wholesale distribution of hardware, knives, or handtools. Merchant wholesale distribution of nails, noninsulated wire, and screening--are classified in Industry 423510, Metal Service Centers and Other Metal Merchant Wholesalers; Merchant wholesale distribution of motor vehicle handtools and equipment--are classified in Industry 423120, Motor Vehicle Supplies and New Parts Merchant Wholesalers; Merchant wholesale distribution of machinists' precision handtools--are classified in Industry 423830, Industrial Machinery and Equipment Merchant Wholesalers; and Merchant wholesale distribution of disposable plastics knives and eating utensils--are classified in Industry 424130, Industrial and Personal Service Paper Merchant Wholesalers.